Almost every graphics card you buy will come with control software for it. In the case of Zotac you have their FireStorm control software, which works really well. Zotac is taking things to the next level and is developing a mobile version of the app which allows you to control your graphics card from your Smartphone!
The app works quite well and gives you all of the functionality of the normal FireStorm app. So you can instantly overclock your graphics card with one click (or press), individually tune each setting of the card, change the LED colors and effects, as well as monitor everything. Sadly it does not look like this software will be available for Zotac’s 10-series cards, but they are planning to have it ready for the 11-series from NVIDIA.